A formable semi-finished product for producing a body with high-precision contour for high-temperature insulation

Abstract

A semi-finished product (1, 1') for the production of a contour-conforming three-dimensional body (2) for high-temperature insulation in the range of 100 °C to 1200 °C, comprising an insulating material (3) arranged between at least two outer planar layers (4, 5), is characterized, with regard to the objective of providing a semi-finished product with which a dimensionally stable, contour-conforming three-dimensional body for reliable high-temperature insulation can be produced as easily as possible, in that the two outer layers (4, 5) are sewn together at at least one seam (6) by the seam material passing through both the two outer layers (4, 5) as well as the insulating material (3).

Description

[0001] The invention relates to a contour-accurate body for high-temperature insulation according to the preamble of claim 1.

[0002] Such a body, intended to encase concrete, is known from US 5,874,150 A. A thermally insulating composite panel is known from WO 2022 / 122046 A1.

[0003] It is already known to surround machine parts with contour-conforming bodies to protect people from contact with hot machine parts. In this context, reference is made only to EP 3 418 534 A1 as an example.

[0004] It is also known to use microporous insulation materials for thermal insulation. Specifically, it is known to connect individual segments containing insulation materials at corners and hold them in position using an external connector, thus maintaining the contour accuracy of the three-dimensional body created by the segments. However, a disadvantage of this method is that so-called hotspots or hot spots develop at the corner joints. These hotspots allow heat to escape to the outside, leading to undesirable surface temperatures or negatively impacting the system's efficiency. Furthermore, a disadvantage is that microporous insulation materials, which are temperature-stable up to 1200 °C, are prone to cracking, resulting in the aforementioned hotspots at kinks or corner joints.

[0005] Against this background, the invention is based on the objective of providing a semi-finished product with which a dimensionally stable, contour-accurate three-dimensional body for reliable high-temperature insulation can be produced as easily as possible.

[0006] The present invention solves the aforementioned problem through the features of claim 1.

[0007] According to the invention, it was first recognized that microporous insulating materials break and / or crumble easily and therefore cannot be folded well, especially in corner areas. It was then recognized that two outer layers enclosing the insulating material can be sewn together at least once along a seam. By allowing the seam material to penetrate both outer layers and the insulating material, a defined fold line is created in which the insulating material is highly compressed. This high compression prevents the insulating material from breaking or significantly reduces the risk of a free break and its consequences. At most, a break occurs that is defined by the seam. Thus, according to the invention, no hotspots or hot spots develop in corner areas because sufficient insulating material is always present in the area of ​​the seam.Moreover, seams ensure that the insulation material does not slip within the layers, that the semi-finished product exhibits high inherent strength and high dimensional stability.

[0008] The seam could create a crease or fold line in the semi-finished product, at which two relatively movable segments of the semi-finished product are connected in such a way that at least one of the segments can be pivoted or folded out of a plane common to at least one other segment. This makes it possible to form a three-dimensional body from a flat semi-finished product that essentially lies in one plane. Preferably, no tool is required to form a three-dimensional body from the flat semi-finished product.

[0009] The semi-finished product has several segments created by seams that, at least in some sections, serve as fold lines for the segments. This allows a semi-finished product to have a large number of interconnected segments that, through defined folding or bending, form a three-dimensional body.

[0010] A fastening element could be arranged on at least one segment, which can be connected to a second fastening element or directly to another segment in such a way that a folded, bent, and / or angled position of the segment relative to another segment or a remaining area of ​​the semi-finished product is maintained. This ensures that a folded or bent segment does not spring back into its original shape. The fastening elements could include snap fasteners, hook-and-loop fasteners, tabs with screws and nuts, or similar means. It is also conceivable to use a belt that runs through loops and takes on the shape of the body. Preferably, the fastening elements can be connected to each other manually without tools.

[0011] The insulating material could be a powder, a fibrous material, or a pressed board. In particular, the insulating material could be microporous. All of these materials have proven to be very well suited for use in high-temperature insulation up to 1200 °C. By combining them with outer layers that are stitched together, encapsulation of these thermally stable, but often brittle, materials between two layers can be successfully achieved. Materials that are inherently brittle can be used for high-temperature insulation in corner areas.

[0012] At least one outer layer could be designed as a woven, knitted, or non-woven fabric. Such layers can be sewn together with yarn and are sufficiently flexible and bendable. Specifically, it is conceivable to reinforce the outer layers with stainless steel or to apply another suitable coating (aluminum, silicone, PTFE, etc.). Alternatively or additionally, at least one outer layer could be textile-like and / or drapeable. This makes the layers easily bendable and flexibly formable.

[0013] An inner layer could be placed between at least one outer layer and the insulation material. This inner layer could be a fiberglass mat, a woven fabric, a knitted or crocheted material. This provides particularly good stabilization for the insulation material.

[0014] The seam could be designed as a quilted seam. Quilting layers together with a single thread is easily achievable on an industrial scale. The resulting seam is extremely strong. Alternatively or additionally, the thread could be high-temperature resistant. This ensures that the three-dimensional body formed from the semi-finished product is thermally stable over the long term and retains its shape for a very long time, preventing hot spots or areas of excessive heat.

[0015] The semi-finished product could exhibit a flatness or a connection of several segments, which allows the semi-finished product to spread out in a narrow working plane and to be stacked on top of each other. This results in good storability of the semi-finished product.

[0016] A three-dimensional body for high-temperature insulation of three-dimensionally extending machines, motors, or machine parts is formed from a semi-finished product, particularly a flat one, of the type described here, by folding and / or bending segments of the semi-finished product to maintain the three-dimensional contour of the body. This allows the semi-finished product to create a kind of custom-made shell for the machine, motor, or machine part, whereby the shell replicates the outer contour of the machine, motor, or machine part in such a way as to minimize the formation of hot spots.

[0017] An arrangement could comprise a machine, motor, or machine part and a body of the type described above, wherein the body roughly follows the outer contour of the machine, motor, or machine part such that the machine, motor, or machine part is high-temperature insulated in the range of 100 °C to 1200 °C. The three-dimensional outlines of the machine, motor, or machine part can be captured using CAD technology, and a cutting and sewing pattern for a semi-finished product can be generated that follows the outlines of the machine, motor, or machine part as closely as possible. This results in minimal waste, and the object to be insulated is thermally insulated with virtually no hot spots or points of instability in corners or bends.

[0018] The drawing shows Fig. 1 a perspective view of a planar semi-finished product, which is made up of several segments, all of which lie essentially in one plane, Fig. 2 a perspective view of the semi-finished product according to Fig. 1 to the side that the in Fig. 1 opposite the one shown, Fig. 3 is a perspective view of the semi-finished product according to Fig. 1 and 2 , which is folded into a three-dimensional contour-accurate body, Fig. 4 a perspective view of the back of the body according to Fig. 3 , Fig. 5 in the upper view a folding area of ​​the semi-finished product before folding and in the lower view the folding area after folding, showing that the insulating material is highly compressed in the folding or corner area, and Fig. 6 a schematic view of a folded semi-finished product which has two inner layers and is held in shape by a belt.

[0019] Fig. 1 and 2show a semi-finished product 1 for the production of a contour-accurate three-dimensional body 2 according to Fig. 3 and 4 For high-temperature insulation in the range of 100 °C to 1200 °C.

[0020] Fig. 5 Figure 1 schematically shows that the semi-finished product 1 comprises an insulating material 3 arranged between at least two outer planar layers 4, 5. The two outer layers 4, 5 are sewn together at at least one seam 6, with the seam material penetrating both outer layers 4, 5 and the insulating material 3. The two outer layers 4, 5 enclose and encapsulate the insulating material 3. The insulating material 3 is sandwiched between the two outer layers 4, 5.

[0021] Fig. 5 The lower view shows that the seam 6 creates a crease or fold line of the semi-finished product 1, at which two segments 7, 8 of the semi-finished product 1 that are movable relative to each other are connected to each other in such a way that at least one of the segments 7 can be pivoted out or folded over from a plane 9 common with at least one other segment 8.

[0022] The semi-finished product 1 according to Fig. 1 and 2 has several segments 7, 7a, 7b, 8 which are created by seams 6 which serve at least partially as fold or crease lines for the segments 7, 7a, 7b.

[0023] A fastening element 11 is arranged on at least one segment 7, 7a, which can be directly connected to another segment 7b in such a way that a folded, bent, and / or angled position of the segment 7, 7a is maintained in relation to another segment 8 or a remaining area of ​​the semi-finished product 1. The fastening element 11 is designed here as a hook-and-loop fastener, which can be connected to an outer layer 4 in the manner of a hook and loop. Specifically, fastening elements 11 are arranged on two segments 7, 7a. Each segment 7, 7a has a hook-and-loop fastener as its fastening element 11.

[0024] Fig. 5 The diagram schematically shows that insulation material 3 comprises a powder material, a fiber material, and / or a pressed board. Specifically, insulation material 3 is designed as a microporous insulation material that is thermally stable up to 1200 °C.

[0025] Fig. 5 The diagram further shows schematically that at least one outer layer 4, 5 is designed as a woven, knitted, crocheted, or laid layer. At least one outer layer 4, 5 is textile-like.

[0026] In the Fig. 5 In the corner area 17 shown, which is represented by a dashed circle, no hotspot or hot spot occurs and no undesirable efficiency losses or impermissible surface temperatures occur.

[0027] Each in Fig. 1 bis 6 Seam 6 shown is designed as a quilted seam and the yarn used for seam 6 is high temperature resistant.

[0028] The Fig. 1 bis 4 Furthermore, they show that in a segment 8 an undercut 12 in the form of a recess is created, which is set off by a seam 6. This undercut 12 ensures that no insulating material 3 can escape to the outside.

[0029] The semi-finished product 1 according to Fig. 1 and 2is characterized by a flatness and a connection of several segments 7, 7a, 7b, 8, which respectively allows a spreading of the semi-finished product 1 in a narrow working plane and a stacking of several such semi-finished products on top of each other.

[0030] Fig. 3 and 4 Each shows a three-dimensional body 2 for high-temperature insulation of three-dimensionally extending machines, motors or machine parts, wherein the body 2 is made of a semi-finished product 1 according to Fig. 1 and 2 The three-dimensional contour of the body 2 is formed by folding and / or bending segments 7, 7a, 7b of the semi-finished product 1. The fastening elements 11, designed as hook and loop fasteners, on segments 7, 7a are connected to segment 7b.

[0031] An arrangement could include a machine, a motor or a machine part and a body 2 according to Fig. 3 and 4comprising, wherein the body 2 roughly follows the outer contour of the machine, motor or machine part such that the machine, motor or machine part is high-temperature insulated in the range of 100 °C - 1200 °C.

[0032] On segments 7 and 7a, a flange 10 is arranged in the area of ​​a kind of insertion opening of the finished body 2, which is provided with passages. This allows the body 2 to be connected to further components.

[0033] Fig. 6 Figure 1 shows, using a further embodiment of another semi-finished product 1', that a first inner layer 15 is arranged between a first outer layer 4 and the insulating material 3. Fig. 6 Figure 1 further shows that a second inner layer 16 is arranged between a second outer layer 5 and the insulation material 3. The outer layers 4, 5, the inner layers 15, 16, and the insulation material 3 are intersected by the seam 6. The inner layers 15, 16 are designed as fiber mats.

[0034] Regardless of the configuration shown with inner layers 15, 16, Fig. 6 Furthermore, the return of a folded or bent segment 7 can be prevented by a belt 13, which is guided tightly and under tension through loops 14 arranged on the second outer layer 5. Fastening means can therefore also include belts 13 and loops 14. Reference symbol list

[0035] 1, 1'Semi-finished product 2Body formed from 1 3Insulation material 4First outer layer 5Second outer layer 6Seam 7First segment 7aSecond segment 7bThird segment 8Fourth segment 9Common plane of 7, 7a, 7b and 8 10Flange on 7, 7a 11Fastening means on 7, 7a 12Undercut in 8 13Belt 14Loop 15First inner layer 16Second inner layer 17Corner area

Claims

1. Three-dimensional body (2) for high-temperature insulation ranging from 100 °C to 1200 °C of machines, motors or machine parts extending three-dimensionally, wherein the body (2) is formed from a semi-finished product (1, 1') by folding and / or bending segments (7, 7a, 7b, 8) of the semi-finished product (1) to obtain the three-dimensional contour of the body (2), wherein the semi-finished product (1, 1') comprises an insulating material (3) which is arranged between at least two outer two-dimensional layers (4, 5) and wherein the two outer layers (4, 5) are sewn together on at least one seam (6) by the seam material passing through both the two outer layers (4, 5) and the insulating material (3), characterized in that the semi-finished product (1) has a plurality of segments (7, 7a, 7b, 8) which are generated by seams (6) which serve at least in some portions as crease lines or fold lines for the segments (7, 7a, 7b).

2. Three-dimensional body according to Claim 1, characterized in that a crease line or fold line of the semi-finished product (1) is generated by the seam (6), at which crease line or fold line two segments (7, 7a, 7b, 8) of the semi-finished product (1) which are movable relative to one another are attached to one another such that at least one of the segments (7, 7a, 7b) can be pivoted or folded out of a plane (9) common to at least one further segment (8).

3. Three-dimensional body according to one of the preceding claims, characterized in that a fastening means (11), which can be connected to a second fastening means or directly to a further segment (7b), is arranged on at least one segment (7, 7a) such that a folded, bent and / or angled position of the segment (7, 7a, 7b) is maintained relative to a further segment (8) or a remaining region of the semi-finished product (1).

4. Three-dimensional body according to one of the preceding claims, characterized in that the insulating material (3) comprises a powder material, a fibrous material and / or a pressed board.

5. Three-dimensional body according to one of the preceding claims, characterized in that at least one outer layer (4, 5) is designed as a woven fabric, knitted fabric, warp-knitted fabric or non-woven fabric and / or that at least one outer layer (4, 5) is in the manner of a textile and / or drapeable.

6. Three-dimensional body according to one of the preceding claims, characterized in that an inner layer (15, 16) is arranged between at least one outer layer (4, 5) and the insulating material (3).

7. Three-dimensional body according to one of the preceding claims, characterized in that the seam (6) is designed as a lockstitch seam and / or that the yarn for the seam (6) is stable at high temperatures.

8. Three-dimensional body according to one of the preceding claims, characterized by a two-dimensionality or an interconnection of a plurality of segments (7, 7a, 7b, 8) which enables the semi-finished product (1) to be spread out in a narrow working plane and a plurality of such semi-finished products (1) to be stacked one above the other.

9. Arrangement comprising a machine, a motor or a machine part and a body (2) according to one of the preceding claims, wherein the body (2) roughly follows the outer contour of the machine, the motor or the machine part, such that the machine, the motor or the machine part is insulated at high temperatures ranging from 100 °C - 1200 °C.

Images